EP 0630362 B1 19960821 - PURIFICATION OF HEXAFLUOROETHANE PRODUCTS
Title (en)
PURIFICATION OF HEXAFLUOROETHANE PRODUCTS
Title (de)
REINIGUNG VON HEXAFLUORETHANPRODUKTEN
Title (fr)
PURIFICATION DE PRODUITS A BASE D'HEXAFLUOROETHANE
Publication
Application
Priority
US 9201607 W 19920310
Abstract (en)
[origin: WO9317988A1] A process is disclosed for purifying a hexafluoroethane product containing CC1F3 and/or CHF3 impurities which comprises the step of contacting the product with a sorbent for said impurities selected from activated carbons and inorganic (e.g., zeolite) molecular sieves at a temperature and a pressure suitable for sorption for a period of time sufficient to remove a substantial amount of said impurities. Also disclosed is an improvement to a process for producing CF3CF3 by fluorination of C2Cl3CF3, C2Cl2F4 and/or C2ClF5 to produce a hexafluoroethane product containing CClF3 and/or CHF3 impurities, wherein the improvement comprises said sorbent contact step.
IPC 1-7
IPC 8 full level
C07C 19/08 (2006.01); C07C 17/20 (2006.01); C07C 17/38 (2006.01); C07C 17/389 (2006.01)
CPC (source: EP US)
C07C 17/206 (2013.01 - EP US); C07C 17/389 (2013.01 - EP US)
Designated contracting state (EPC)
DE ES FR GB IT NL
DOCDB simple family (publication)
WO 9317988 A1 19930916; DE 69213029 D1 19960926; DE 69213029 T2 19970206; EP 0630362 A1 19941228; EP 0630362 B1 19960821; ES 2090668 T3 19961016; HK 1001476 A1 19980619; JP 3130046 B2 20010131; JP H07504435 A 19950518; US 5523499 A 19960604
DOCDB simple family (application)
US 9201607 W 19920310; DE 69213029 T 19920310; EP 92915689 A 19920310; ES 92915689 T 19920310; HK 98100136 A 19980107; JP 51560993 A 19920310; US 29566994 A 19941228